hangup static method
Hangup call for a specific account
Implementation
static Future<void> hangup(String accountId) async {
try {
final call = _currentCalls[accountId];
if (call == null) return;
call.hangup();
_currentCalls[accountId] = null;
debugPrint('✅ Call hung up for account: $accountId');
} catch (e, stackTrace) {
_printException('Hangup', e, stackTrace);
}
}